jdk8-mips64-public/hotspot: src/share/vm/ci/ciMethodHandle.cpp@5eb9169b1a14 (annotated)

src/share/vm/ci/ciMethodHandle.cpp@5eb9169b1a14 (annotated)

src/share/vm/ci/ciMethodHandle.cpp

Wed, 12 Oct 2011 21:00:13 -0700

author: twisti
date: Wed, 12 Oct 2011 21:00:13 -0700
changeset 3197: 5eb9169b1a14
parent 3105: c26de9aef2ed
child 3245: e0658a9b3f87
permissions: -rw-r--r--

7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
Reviewed-by: jrose, never

 /*
  * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "ci/ciClassList.hpp"
 #include "ci/ciInstance.hpp"
 #include "ci/ciMethodData.hpp"
 #include "ci/ciMethodHandle.hpp"
 #include "ci/ciUtilities.hpp"
 #include "prims/methodHandleWalk.hpp"
 #include "prims/methodHandles.hpp"
 // ciMethodHandle
 // ------------------------------------------------------------------
 // ciMethodHandle::get_adapter
 //
 // Return an adapter for this MethodHandle.
 ciMethod* ciMethodHandle::get_adapter_impl(bool is_invokedynamic) {
   VM_ENTRY_MARK;
   Handle h(get_oop());
   methodHandle callee(_callee->get_methodOop());
   assert(callee->is_method_handle_invoke(), "");
   oop mt1 = callee->method_handle_type();
   oop mt2 = java_lang_invoke_MethodHandle::type(h());
   if (!java_lang_invoke_MethodType::equals(mt1, mt2)) {
     if (PrintMiscellaneous && (Verbose || WizardMode)) {
       tty->print_cr("ciMethodHandle::get_adapter: types not equal");
       mt1->print(); mt2->print();
     }
     return NULL;
   }
   // We catch all exceptions here that could happen in the method
   // handle compiler and stop the VM.
   MethodHandleCompiler mhc(h, callee->name(), callee->signature(), _profile.count(), is_invokedynamic, THREAD);
   if (!HAS_PENDING_EXCEPTION) {
     methodHandle m = mhc.compile(THREAD);
     if (!HAS_PENDING_EXCEPTION) {
       return CURRENT_ENV->get_object(m())->as_method();
     }
   }
   if (PrintMiscellaneous && (Verbose || WizardMode)) {
     tty->print("*** ciMethodHandle::get_adapter => ");
     PENDING_EXCEPTION->print();
     tty->print("*** get_adapter (%s): ", is_invokedynamic ? "indy" : "mh"); ((ciObject*)this)->print();
   }
   CLEAR_PENDING_EXCEPTION;
   return NULL;
 }
 // ------------------------------------------------------------------
 // ciMethodHandle::get_adapter
 //
 // Return an adapter for this MethodHandle.
 ciMethod* ciMethodHandle::get_adapter(bool is_invokedynamic) {
   ciMethod* result = get_adapter_impl(is_invokedynamic);
   if (result) {
     // Fake up the MDO maturity.
     ciMethodData* mdo = result->method_data();
     if (mdo != NULL && _caller->method_data() != NULL && _caller->method_data()->is_mature()) {
       mdo->set_mature();
     }
   }
   return result;
 }
 #ifndef PRODUCT
 // ------------------------------------------------------------------
 // ciMethodHandle::print_chain_impl
 //
 // Implementation of the print method.
 void ciMethodHandle::print_chain_impl(outputStream* st) {
   ASSERT_IN_VM;
   MethodHandleChain::print(get_oop());
 }
 // ------------------------------------------------------------------
 // ciMethodHandle::print_chain
 //
 // Implementation of the print_chain method.
 void ciMethodHandle::print_chain(outputStream* st) {
   GUARDED_VM_ENTRY(print_chain_impl(st););
 }
 #endif

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/ci/ciMethodHandle.cpp@5eb9169b1a14 (annotated)

src/share/vm/ci/ciMethodHandle.cpp